Yanhong LIU,Wenbo LIAO,Caiquan ZHOU,et al.Asymmetry of Testes in Guenther’s Frog, Hylarana guentheri (Anuar: Ranidae)[J].Asian Herpetological Research(AHR),2011,2(4):234-239.[doi:10.3724/SP.J.1245.2011.00234]
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Asymmetry of Testes in Guenther’s Frog, Hylarana guentheri (Anuar: Ranidae)
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2011 VoI.2 No.4
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Original Article
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Asymmetry of Testes in Guenther’s Frog, Hylarana guentheri (Anuar: Ranidae)
Yanhong LIU12 Wenbo LIAO12* Caiquan ZHOU12* Zhiping MI12 and Min MAO1
1 Key Laboratory of Southwest China Wildlife Resources Conservation of Ministry of Education, China West Normal University, Nanchong 637009, Sichuan, China
2 Institute of Rare Animals and Plants, China West Normal University, Nanchong 637009, Sichuan, China
directional testes asymmetry compensation hypothesis body condition Hylarana guentheri
Testes size in most animals commonly shows directional asymmetry. In birds, the left testis mass is usually larger than the right one, but the reports on the testes asymmetry in anurans are very few. M?ller (1994) hypothesized that the right testis serves a compensatory role and increases in size when the left one is defective, and further suggested that testes asymmetry may be a reliable indicator of individual body condition. In this paper, we tested the compensation hypothesis in the Guenther's frog, Hylarana guentheri. From 60 sampled males, we found that there was a significant directional asymmetry in testes mass, with the left testis size being significantly correlated with relative testes asymmetry, providing evidence that the right testis had a compensatory function. However, testes mass and asymmetry were not correlated with body condition. Hence, we found no evidence that testes asymmetry in the Guenther's frog reflected male condition, and male age was also not related to testes mass or asymmetry.


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